57 lines
1.5 KiB
TypeScript
57 lines
1.5 KiB
TypeScript
import { groupBy, sumBy, mapValues, partition } from 'lodash'
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import { Bet } from './bet'
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import { getContractBetMetrics } from './calculate'
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import { Contract } from './contract'
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import { getPayouts } from './payouts'
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export function scoreCreators(contracts: Contract[]) {
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const creatorScore = mapValues(
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groupBy(contracts, ({ creatorId }) => creatorId),
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(contracts) =>
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sumBy(
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contracts.map((contract) => {
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return contract.volume
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})
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)
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)
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return creatorScore
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}
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export function scoreTraders(contracts: Contract[], bets: Bet[][]) {
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const userScoresByContract = contracts.map((contract, index) =>
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scoreUsersByContract(contract, bets[index])
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)
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const userScores: { [userId: string]: number } = {}
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for (const scores of userScoresByContract) {
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addUserScores(scores, userScores)
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}
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return userScores
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}
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export function scoreUsersByContract(contract: Contract, bets: Bet[]) {
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const profits = bets.map((bet) => {
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const { userId } = bet
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const payout = getContractBetMetrics(contract, [bet]).profit
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return { userId, payout }
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})
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const userScore = mapValues(
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groupBy(profits, (payout) => payout.userId),
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(payouts) => sumBy(payouts, ({ payout }) => payout)
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)
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return userScore
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}
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export function addUserScores(
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src: { [userId: string]: number },
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dest: { [userId: string]: number }
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) {
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for (const [userId, score] of Object.entries(src)) {
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if (dest[userId] === undefined) dest[userId] = 0
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dest[userId] += score
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}
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}
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